A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to be taken through the endoscope. The photographing light quantity controller comprises a device for supplying light for illuminating an object to the endoscope,...http://www.google.fr/patents/US5191369?utm_source=gb-gplus-shareBrevet US5191369 - Photographing light quantity controller for endoscope
Photographing light quantity controller for endoscope
